Description

Specifically designed for the thermoplastics resin industry, the Dynisco CMR series can be configured to measure melt flow rate, high/low load melt flow rate, apparent viscosities, or to perform other customer defined tests.

The CMR system consists of two parts: a rheometer head connected directly to the process which samples, conditions, and measures the melt flow of the resin, and an RCU (Rheometer Control Unit) that controls the CMR test parameters (temperature, pressure, rate), and provides outputs of computed results, and communications to an external distributed control system when required.

Features• On-line melt flow rate correlated to ASTM D1238

• On-line apparent viscosities

• Data exchange by analog and digital input/outputs

• Customer specified solutions

• Systems for hazardous locations

• Compact measuring head for close extruder connection

• Dynisco Vertex® Mercury Free Pressure Transducers forhigh accuracy

• A range of metering pump sizes for specific applications

• Simple ”in the field“ calibration

• Alarm system for malfunctions

• Rugged industrial design

Dynisco Continuous Melt Rheometer

(CMR)MONITORING YOUR CONDITIONS

FOR CONSISTENT RESULTS

From lab to production,providing a window into the process

CMR IV

The rheometer samples molten polymer from the process through a heated transfer line. A metering pump then drives the polymer melt through a capillary die of accurate diameter and L/D ratio, at a precisely controlled rate. The pressure drop across the die is measured by a Vertex Mercury Free pressure transducer. When the system is run at constant pressure (shear stress) and the flow rate is determined, a continuous measurement of the MFR is obtained. A wide range of accurate inter-changeable capillaries provide the system with high resolution and a broad range of capabilities.

CMR IV RCU: ULTIMATE PERFORMANCE

Our high performance RCU combines the rheological properties of a Laboratory Capillary Rheometer with MFI readings delivered by a Melt Flow Indexer. It has been updated with a Siemens S7-1500 PLC with a Siemens 7” (178mm), Comfort Panel Touch Screen HMI. This combi-nation provides increased processing power and hi-end graphics enabling the RCU to provide +/- .5% Full Scale Accuracy. This allows the RCU to better align measure-ments with those taken from laboratory instruments. Furthermore, it is certified for hazardous environments as needed. The RCU will allow for up to 7 analog outputs and 8 digital outputs- see more information in specification chart

CMR IV e-RCU: PERFORMANCE SIMPLIFIED

The CMR IV e-RCU offers a simplified PLC with the digital and analog I/O that most plants would need for a cost effective approach to measuring online rheology. It has a Siemens S7-1200 PLC with a Siemens 7” (178mm) Comfort Panel Touch Screen HMI. This combination provides the system with processing power and hi-end graphics allowing the e-RCU to provide +/- 2% Full Scale Accuracy. The e-RCU provides the processor the ability to measure Melt Flow Ratio, Relative Viscosity, Intrinsic Viscosity, and Melt Viscosity in typical end-user environ-ments. All of which create a cost-effective system that reduces the risk of failure to an acceptable level. If con-ditions change and the system is needed in a hazardous and/or classified location, compatibility with the standard RCU allows for an easy upgrade. The e-RCU will allow for up to 2 analog outputs and 2 digital outputs- see more information in specification chartExperience the Benefits of Online Rheology Measurement

MONITORING YOUR CONDITIONS FOR CONSISTENT RESULTS

MONITORING YOUR CONDITIONS FOR CONSISTENT RESULTS

PERFORMANCE CHARACTERISTICS

Melt Flow Index 0.02 - 5000 g/10 min

Viscosity Range 10 – 105 Pas

Shear Stress 150 - 1.5 x 105 Pa

Shear Rate1 to 7500 sec-1 (standard die) Maximum 50,000 (special die)

Dies Viscosity 1 - 5mm, 10 to 30:1 L/D

Melt Flow Index 3.8182:1 L/D

Special Dies Upon Request

Pressure Range 3 x 105 – 3.5 x 107 Pa

Metering Pump0.16 cm3 / RPM (standard)0.297 cm3/ RPM (optional) 0.584 cm3/ RPM (optional)

Pump Speed 3 – 75 RPM

Polymer Flow 225 g/hour (average)

MEASUREMENT AND CONTROL FUNCTIONSShear Stress Mode

Set point Pressure

Measurement Melt Flow IndexShear Rate Mode

Set point Pump Speed

Measurement Apparent Viscosity

Temperature Control 3 Heating Zones

ELECTRICAL SPECIFICATIONSystem Voltage 208-240 VAC, 1Ø, 50/60 Hz-standardPower 1200 W (max

RHEOLOGIC CONTROL UNIT SPECIFICATIONS

RCU E-RCU

Electrical Cabinet NEMA 4, 4x, 12 (IP66) NEMA 4, (IP61)

CPU Siemens 1500 Series Siemens 1200 Series

Operator Interface HMI, Siemens Comfort Panel

Dimensions: 45” H x 30”W x 13”L (1143 mm x 762 mm x 330 mm)

24”H x 24”W x 10”D(609 mm x 609 mm x 254 mm)

Weight 275 lbs 80 lbs

ANALOG OUTPUTS: (4 – 20 MA STANDARD)

Select any 7 of the following: Select any 2 of the following:

Options

1. Melt Flow Index ((MFI) ing/10 min

2. Motor Speed (RPM)3. Capillary Zone Pressure4. Pump Zone Pressure5. Melt Temperature6. Auxillary Temperature 7. Pressure

8. Shear Rate9. Shear Stress10. Melt Viscosity 11. Relative Viscosity 12. Intrinsic Viscosity 13. Configurable by User14. Configurable by User

1. Melt Flow Ratio2. Melt Viscosity 3. Relative Viscosity 4. Intrinsic Viscosity

DIGITAL INPUTS 24VDC, 9 mA

DIGITAL OUTPUTS

NC dry contacts -- 12 V min, 250 VAC max, 10 mA min, 6 A max, 20 W max

©2016 Dynisco. Dynisco reserves the right to make changes without notice.Refer to www.Dynisco.com for access to Operator Manual and other support documentation. DSCMRRCUERCU 0716

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Phone +49 7131 297 0Fax +49 7131 297 166Email dyniscoeurope@dynisco.com

Dynisco ShanghaiBuilding 7A, No. 568 Longpan Rd Malu Jiading, 201801 China

www.dynisco.com

Phone +86 21 34074072-819Toll Free +86 400 728 9117Fax +86 21 34074025Email dynisco.sh@dynisco.com

System Diagrams

MONITORING YOUR CONDITIONS FOR CONSISTENT RESULTS